Spark Plug MR43LTS
The MR43LTS is the long reach Genuine Marine Spark Plug by AC Delco (stainless steel body) used on GM Vortec 5.7 engines
GM Vortec 300+HP engines have (8) intake manifold bolts running straight down, pre-Vortec engines have (12) angled bolts.
SOLD AS A BOX OF 8
Gap: .045"